Stitch-indenting machine.



E. EHICKSON.

STITCH INDENTING MACHINE.

APPLICATION FILED IULYZ5, I907. RENEWED OCT. 29,1915.

Q Inveniorx' We'inessesu u aaz, QM

a4: 6 JLdW E. ERICKSON.

STITCH INDENTING MACHINE.

APPLICATION FILED 1ULY25, 19071 RENEWED OCT. 29,1915.

Patented Dec. 21, 1915.

4 SHEETS-SHEET 2.

mine-859s:

E. ERICKSON.

STITCH INDENTING MACHINE.

APPLICATION man JULY25. 1,901. RENEWED on. 29, 1915.

1,165,002. Patented Dec. 21, 1915.

4 SHEETS-SHEET 3. 3/

o I l 53 Witnesses: /40 1 7 In enter,

- v g aw ai M12 EDWARD EBICKSON,

OF BOSTON, MASSACHUSETTS, ASSIGNOB TO THE BOYLSTON NEW JERSEY.

Application filed. July 25, 1907, Serial No. 385,454. Renewed October 29, 1 915.

is a specification.

This invention has relation to stitch indenting machines, and has for its ob ect to provide certain improvements therein ,to

simplify the construction thereof and to render them moreaccurate and. efficient in section.

operation. I

The manner in which the invention is carried out and in what it consists are set forth in the following specification and'claims, and are illustrated upon the accompanying drawings which show one embodiment of the invention. v

Referringto said drawings, Figure' l'represents in planview a stitch indenting machine embodying the -invention. Fig. 2 represents a side elevation of the same. Fig. 3 represents a front, end elevation thereof. Fig. 4 represents the machine in longitudinal Fig- 5 represents a plan view of the machinewhen the parts have fed and indented the work. Fig. '6 represents a transverse vertical section through the machine on the line 6-6 .of Fig. '2. Fig. 7 represents a section on. the line 7'-7 of Fig. 4. V I

The machine is provided withthe usual supporting standard 10 adapted to rest either upon the floor or a bench as may be required. I On the standard is ahead comprising a base 11 atthe ends of which are theuprights 12 12, 1313-. The prime power shaft of the machine, which is indicated at 14, is journaled in bearings in .the' uprights 12 12 and is rotated by any suitable means such as a belt pulley 15, the hub 16 of whichis illustrated in Fig. 1 as being pinned to said shaft. To the opposite end of the shaft is pinned or otherwise secured amomentum wheel 117*which also affords a means for turning 'over'the mach-inetby hand. In the uprights 13113 *i s'j ournaleda'; shaft 17. which is adaptedtof be reciprocated-axially or longitudinally. i This shaft supports the carrier for he indenting tool which is given a four-way movement toj'efiect the indenting and feeding of the work. To one end of the shaft is attached a lever "18 by means of a screw pin 19 as bestshow'n'in F ig- 6.- The Specification of Letters Patent. I

in connection with the lock 'STITCH-INDENTING MACHINE.

Patented Dec. 21, 1915.

Serial No. 58,728.

other end of the shaft is held against a stop or abutment 20 by a spring 21, one endof which is connected to a pin 22 to one of the uprlghts 13, and the otherend of which is connected to an car 23 on the end of the lever 18. The said lever. 18 is fulcrumed between its ends by a bolt 24 upon a lateral projection 25 on a longitudinal bar 26 which connects'the uprights '13 and 12 on one side of the machine. The rear end of the lever 18 carries a roll 27 which is engaged by a face-cam28 on the hub 16 of the pulley 15. During each revolution of the shaft 14, the

lever 18"is oscillated to impart a longitudinal reciprocation to the shaft 17.

-The indenting tool is indicated at 29. Its shank is clamped in the end of an armor carrier 30 and may be adjusted by a screw 31 which is equipped with a lock nut 32. The carrier has a bifurcated hub which is loosely journaled on the shaft 17 but which is held against axial movement relatively thereto bya collar 33 which is straddled by the hub and which is secured to the shaft by any suitable means such as a pin 34 (see Figs. 4 and 6). The carrier 30 is provided with a'rearwardly extending arm or lever 35 bearing upon its end a roll 36 which is engaged with a cam 37 secured to the shaft 14. The roll 36 is held against the cam by a spring 35,which will be again referred to for the work support. The cam 37 and the roll 36 are extended axially sufficiently to prevent their disengagement during the axial-movement. ofthe carrier for the indenting tool. The

is first depressed to enter between two stitches and indent the welt of a shoe, then to move laterally to feed the work, then to move upward, and then to move laterally back to its initial position.

For the purpose of holding the work when the indenting tool is disengaged therefrom, I employ a presser-footwhich is indicated at 38. This presser-foothasan end adapt ed to engage the workand is pivoted between its ends upon a bolt 39, which is passed intoa bracket 40;" The said bracket is supported-upon one of the uprights as shown 1.

in Fig. 6, and

is provided withthe depend+- ing arm 20 which constitutes the abutment I for the shaft 17. The said bracket is ad justable transversely of the machine by means of an adjusting screw; 41, passed into' a to th sh nk o sp ndl t ea le m chanism, w i h is eonneeted v it the upright 13 last mentioned and is secured after adjustment by a screw 42 passed through a slot-43 from said bracket; The

adjustment ofthebracket varies the length of the reciprocatory movement ofthe shaft 17 and the lateral movement of-t'he indenting-'- -tool, and simultaneously varies the position" ofithe' resser-foot; As the position of the-- means by f h his its ee mne wul e se seq eed eXrlei-ee Ts e r ls-su p i te ef e i e e e disk es ed e fife r t i -P ee e l ierie e Ree uh e tl h ld b eerev 6- This bearing is f ormedhon-a member 4'? having an e -i' 'e8 ldee d T e 'y e e9 en m b e 'S PP I' 9- Three h Jdae e-r and ro gh he yeke Peee d el 51, brwhi h t ey y be p dr dl tes d ee, bu l i h w l p rm s; when its set .ie uns re ed, t W rk s pp rt he 'b e i'a ted ab u adh iz onta]. axis transverse to the machine. The' r a ne tier ef the b vel d iae 1 f th sk li under. the ind n ing 0 1 2 e d the wo k $:1BS 6d 1lQ 9; fi$ sh a e i e- T es st he h ust of th indent n t l he m m r 8 ie mi d wi h. n arm 2 w c x ndeuud r th di k m e iat ly below h ndent ng hee to; cons i u e an abutment. A I i he mova ,su-ppe t 5 ha a, shank 53 whi h extends downwa d y through n perture-in a bracket 54: projectingforwardly from the frontuprights 13 and also through a bracke 5- pneie r ng o werd y'fi m the base 110i he tandard 0,. e eWYnvi-n F g 2. A spri-ng56 enci le the shank or spi die, vone end engaging-th b acke 5:. and the e her end enga ng a co la .57 s em thev spindle of the ork support, the latter may be depressed gainst the teuei 'e the spring'for th insertion o th W k- The treadle'mechanism is not'shown, as such devices are Well known Toassist in? guiding the Work s pp rt i it a' r ie l movem n here ee id Pin 5.8 Pr j in upwar y from the bracket 5d through all aperture in the support 570. v h c I ha pr vided mean er lee ing t Work e ppe t vag in d p t e ee le h in ting tool is inden i g-th Work An suitable loeking-mee a m may be ilized- Ikhave illustrated 111391 the drawings, how;

ever, a conveni nt meehaui m hi s ves the ur ose. It COI S SfiS of a el nget d l ver 59'wvhioli is fulcrumed up on a stud: Q60

inithe upright 'l311erreer end i me By a s ita le lever carries roll 61 which. is adapted. to

be intermittently engaged by a cam 62 on the shaft 14. For con venienoe the -two earns 'tialL- =T he spring 35, hereinbefore referred to, has one end connected to the carrier arm 3'5 and-its other end to the lever 59 so that these two parts are held yieldinglytoward their respective cams. The forward short projecting arm 63 of the lever 59 is provided \y-1th "an-aperture 64 through which the oifth Work SUPP-Orb extends; The front and rear of, the shank are slabbed ofi' sojt hatin cross-section is substantially ell pt cal as llustratecljin F 1g! 7. The faper ture 64 1s flaring in opposite directionsand its middle portion closely surroundsthe-f he k; e9 eeegw en he lever 59 is i p d-es s een I in ms i f i el y clamps the shank 53 and binds it 7 against movement XVhen however, the arm 631s v perpendicular to the shank 53, as shown in Fig. 2, as vvhenthe lever 59 is depressed by eam 2, the shank "is free" to move through the aperture 64;. Y

resser-foot '38," previously reierred to, is connected to the lever- 59 by. connecting rod or link 65 pivoted to each of them, so as to be operated thereby. For the purpose o ffwarying the throw to if the presserfaotbS r e lend e e gite iu l y elettedes indicated-@166. tofreceive a'pin 67 which connects the link theretol' Asfvvill be explainedyyvhen rthe il j kiug lever '59, 1s file-I pe ed t r e e the e eupp e th presserefoot is raised to permit the feeding 1 Work the indenting tool. ln'order that the prk support may be unlocked by stud fi9finan ear or lug '70 projectingfup- Wardly from the base' of'the head: Thisv lever'has one arm 7 1 yvitha pin or pr oie'c tion depresses said lever 59 and thus re; leases the: yvork support; A spring 173 is 'c onnegted to a lugfii cnthe lever- 68so..as' to norni ally'holdnit in aninactive position,

therebeing on 'said lever 68a finger 7;5 ad p ed fi en eee en. bi1 n 1 5, h n in dotted linesin A to limit-tlie move-j ee e ied the se p d ef the spring. 7 r a .7 The parts are so timede that,{ asthe ini V deee ee lr re e ii i end'ef feeding movement; the roll 61 on thelocking l'ever rides" oflf frgojm the rise; of the Gain 62 and thespring35, "drawsit apu ard to loc l c the Work support against Idepressiom and by the same' movement of the said lelver 5 9 111116 presserif oot 38 is simulta by neouslywpnessed toengage .theigivork, J The inde ie teel. eii esezirem e lwer ends work.

' presser-foot.

support remains locked until the indenting tool has reached the downward limit of its movement so as to completely indent the work. The cam 62 then engages the roll 61 on the lever 59 and unlocks the work sup-,v and lifts the presser-foot; whereupon. the cam 28 moves the lever 18 so as as impel the shaft 17 to the left (looking at the machine from the front) to feed the work, and, during this feeding movement, the work support remains unlocked and the presser-foot remains in its raised position. This completes one cycl of the operation of the machine.

Having thus explained the nature of my said invention, structing and using the same, although Without attempting to set forth all of the forms in which itmay be made or all of the modes of its use, what I claim is 1. In a stitch indenting machine, an indenting tool, a carrier therefor, means for oscillating said carrier to cause the tool to approach and recede from the work, a cam for moving said carrier laterally to feed the work, a spring for moving said carrier laterally in the opposite'direction, a presserfoot, means for actuating said presser-foot, and a support for the pre'sser-foot having an abutment for limiting the spring-impelled movement of the carrier, said support being adjustable longitudinally relatively to the said spring-impelled movement.

2. In a stitch indenting machine, an indenting tool,and means for actuating said tool to indent and feed the work, in combination with a work support comprising a spring-supported spindle or shank located,

below the tool, a bearing member pivoted to the upper end of the shank by a transverse pivot, and having a cylindrical bearing,said member having an arm projecting under the tool, a work-supporting said cylindrical bearing with its under face near its periphery slidingly engaging the end of the said arm, and means for locking the spindle against yielding movement when the tool is depressed to indent and feed the 30111 a stitch indenting machine, an indenting tool, means for actuating said tool to indent and feed the work, a presser-foot, a spring-tensioned work support, a lock for the work support to resist movement thereof, means for actuating said lock to release the work support, and means operative by said lock-actuating means for actuating the 1. In a stitch indenting machine, a shaft, an indenting tool, means actuated by said shaft for periodically depressing said tool to indent the work, a presser-foot, a springand described a way of con- I tently disk rotatable on work supportja pivoted locking lever having oppositely disposed faces adapted to engage the said shank for locking and releasing it as said lever is moved about its plvot, and

means actuated by said shaft for actuating said lever to lock said shank against movement when the indenting tool is depressed to indent the work.

' 5. In a stitch-indenting machine, an indenting tool, a movable work support, a movable member for actuating said tool, a movable member for locking said work support, a power shaft having cams for operating said tool-actuating member and locking member respectively, and a spring connect- 1ng said tool-actuating member and locking member whereby the indenting tool is retracted and the work support is locked.

6. In a stitch indenting machine, an indenting and feeding tool, a shaft, means actuated by said shaft to intermittently depress said tool to indent the work, a depressible work support having a shank or spindle, a locking lever having oppositely disposed faces adapted to engage and bind the shank o'r spindle against movement when the lever and shank are at an angle other than a right angle, and means for intermitactuating said lever to bind the spindle as the tool is depressed and to release the spindle when the tool is raised.

7. In a stitch-indenting machine, means for alternately indenting and feeding the work, a yielding work support, means for locking the work support at the completion of each feeding operation, said means prolonging the locking until the completion of the next indenting operation and releasing the work support prior to the next feeding operation, a yielding presser-foot for clamping the work against the work-support, and means connecting said locking means and presserfoot whereby the presser-foot is retracted when the work support is unlocked.

8. In a stitch-indenting machine, a movable work support, a presser-foot, yielding means for causing them to clamp and hold the work, means for indenting the work and feeding the same step by step, means for locking the work support to sustain the pressure thereon by said indenting and feeding means during the indenting operation thereof, and means for actuating said locking means and presser-foot at the finish of the indenting operation to release the work support and retract the presser-foot prior to the feeding operation. I

9. In a stitch-indenting machine, a movable work support, a presser-foot, yielding means for causing them to clamp and hold the work, means for indenting the work and feeding the same step by step, means for locking the work support to sustain the pressure thereon by said indenting and feeditensioned work'support, a shank for said 

